The Gear,spur, cataloged under National Stock Number 3020-00-320-8527, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Teledyne Brown Engineering, Inc. Dba Teledyne Advanced Electronic Solutions Div Teledyne Advanced Electronic Solutions. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-320-8527 |
| Primary Part Number | GR1452 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Teledyne Brown Engineering, Inc. Dba Teledyne Advanced Electronic Solutions Div Teledyne Advanced Electronic Solutions |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.156 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.406 INCHES FIRST END IN |
| Teeth Quantity | 20 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.250 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-S-764,COND B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.4170 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PINNED FIRST END |
| Nominal Outside Diameter | 0.4555 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303SE OVERALL |
| Face Nominal Width | 0.188 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| GR1452 | Teledyne Brown Engineering, Inc. Dba Teledyne Advanced Electronic Solutions Div Teledyne Advanced Electronic Solutions (USA) |
| 652-804 | Teledyne Brown Engineering, Inc. Dba Teledyne Advanced Electronic Solutions Div Teledyne Advanced Electronic Solutions (USA) |
| 652-110 | Teledyne Brown Engineering, Inc. Dba Teledyne Advanced Electronic Solutions Div Teledyne Advanced Electronic Solutions (USA) |
| Reference | Meaning |
|---|---|
| GR1452 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-00-320-8527 is a Gear,spur, manufactured by Teledyne Brown Engineering, Inc. Dba Teledyne Advanced Electronic Solutions Div Teledyne Advanced Electronic Solutions, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-320-8527 has 3 manufacturer part numbers on file: GR1452 (Teledyne Brown Engineering, Inc. Dba Teledyne Advanced Electronic Solutions Div Teledyne Advanced Electronic Solutions), 652-804 (Teledyne Brown Engineering, Inc. Dba Teledyne Advanced Electronic Solutions Div Teledyne Advanced Electronic Solutions), 652-110 (Teledyne Brown Engineering, Inc. Dba Teledyne Advanced Electronic Solutions Div Teledyne Advanced Electronic Solutions).
1 possible match (shared part number, not a government interchangeability claim): 1560-01-497-0262. Verify interchangeability with system specifications before substitution.
Key specifications for GR1452: Bore Nominal Diameter: 0.156 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.406 INCHES FIRST END IN; Teeth Quantity: 20; Body Style: PLAIN, SOLID. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.